<template>
  <div class="icons">
    <swiper :options="swiperOption" ref="mySwiper" v-if="iconList.length">
      <swiper-slide v-for="(page, index) of pages" :key="index">
        <div class="icon" v-for="list of page" :key="list.id">
          <div class="icon-img">
            <img class="icon-img-content" :src="list.imgUrl" alt="">
          </div>
          <p class="icon-desc">{{list.desc}}</p>
        </div>
      </swiper-slide>
      <div class="swiper-pagination"  slot="pagination"></div>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    iconList: Array
  },
  data () {
    return {
      swiperOption: {
        pagination: '.swiper-pagination',
        loop: true
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.iconList.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '~styles/varibles.styl'
  @import '~styles/mixins.styl'
  .icons >>> .swiper-container
    height : 0
    padding-bottom : 50%
  .icons
    margin-top : .1 rem
    .icon
      position relative
      overflow : hidden
      float : left
      height : 0
      width : 25%
      padding-bottom : 25%
      .icon-img
        position : absolute
        top : 0
        left : 0
        right : 0
        bottom : .44rem
        box-sizing : border-box
        padding : .1rem
        .icon-img-content
          height : 100%
          display : block
          margin : 0 auto
      .icon-desc
        position : absolute
        left : 0
        right : 0
        bottom : 0
        height : .44rem
        line-height : .44rem
        text-align : center
        color : @darkTextColor
        ellipsis()
</style>
